In Diti's Study,employees Who Listened to Rap Music Produced an Average

Multiple Choice

In Diti's study,employees who listened to rap music produced an average of 5.71 units and employees who listened to polka music produced an average of 2.71 units.To see if the difference between these means is statistically significant,Diti should ____.

A) calculate a correlation coefficient
B) examine the medians
C) conduct a t test
D) calculate percentiles